I am trying to make my computers simpler and more secure using a public/private key pair in order to do this as shown below there is a small problem. My computers are on a private network and not connected to a known domain like below:
computerA@ipaddress

not

computerA@home.com

As shown below
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We can make things simpler and more secure by using a public/private key pair; I highly recommend using ssh-copy-id for moving your public keys around. It will save you quite a few folder/file permission headaches.

$ ssh fooey@dev.example.com -p 22000
# Assuming your keys are properly setup…

Now this doesn't seem all that bad. To cut down on the verbosity you could create a simple alias in your shell as well:

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Can i run the ssh example above if so, how do i get the domain name FREE if possible?

cajunchief

You don't need a domain to use keys in this manner. ssh-copy-id username@192.168.1.123 works fine. You should ensure that computers' IP addresses never change, otherwise it gets more complicated (I don't know what to do in this case, but Google does).

Alternatively, you can install a DNS server in your private network and create your own domain. No need to ask anybody's permission.

Thanks berndbausch! I will work on getting my DNS server installed on my network. and use the ssh-copy-id username@ipaddress. Thanks!

cajunchief